[beagleboard] Debug serial console not working
Hi I am trying to get the debug serial working on Ubuntu for my beagle bone black board. I am powering up the BBB with the 5V 2A power adapter. I am using the prolific usb to serial connector. After I connect the usb cable & When I check on Ubuntu with dmesg | tail I could see it’s getting enumerated as ttyUSB0 When I open with putty on the path /dev/ttyUSB0 with 115200 8N1 I am not able to open the com port using putty. Kindly suggest if any of the steps missing out here. Best regards, Vinay -- V.K.CHIKKADI -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CA%2BqvWES1aW44NhvDLe%2BVXdaJtoLNogJcJNRZUigcoGYLP-49sw%40mail.gmail.com.
Re: [beagleboard] Re: Debug serial console not working
Hi Dennis, Good day to you I have given permission by running sudo chmod 0777 /dev/ttyUSB0 Now I am able to open in putty but not receiving any data from bbb. Seems the issue with usb to serial cable. I got similar cable what you just mentioned on amazon. Probably I would try to procure one from adafruit. Thank you, it was of great help to me. I would check with different cables and come back if problem persists. Regards, Vinay On Fri, 2 Jul 2021 at 11:15 PM, Dennis Lee Bieber wrote: > On Fri, 2 Jul 2021 15:44:12 +0530, in gmane.comp.hardware.beagleboard.user > Vinayakumar Chikkadi > wrote: > > > >I am using the prolific usb to serial connector. After I connect the usb > > WHICH "prolific usb to serial"? They have a whole slew of > different > models. And that doesn't count the packagers using a Prolific chip in their > products (cf: > https://www.amazon.com/prolific-usb-serial/s?k=prolific+usb+to+serial ) > I'm guessing something similar to > > https://www.amazon.com/Serial-Adapter-Signal-Prolific-Windows/dp/B07R8BQYW1/ref=sr_1_8?dchild=1&keywords=prolific+usb+to+serial&qid=1625245702&sr=8-8 > > I can't really help with Prolific -- most of my USB<>serial > devices are > FTDI chips. I think the Adafruit 4-pin cable is the only Prolific chip > device I have. > > >cable & When I check on Ubuntu with dmesg | tail > >I could see it’s getting enumerated as ttyUSB0 > >When I open with putty on the path > >/dev/ttyUSB0 with 115200 8N1 > >I am not able to open the com port using putty. > > Do you have privileges for the device? May not be relevant, but > connecting a USB<>Serial to the USB side of my BBB (I don't have a native > Linux desktop computer, and Windows won't be helpful to you) shows up like > > crw-rw 1 root dialout 188, 0 Jul 2 13:21 /dev/ttyUSB0 > > the default user for the machine does belong to the dialout group. > > I got the same thing for Debian running inside VirtualBox /after/ > manually selecting the USB device from the VB0x menu... > > BUT... unlike the BBB, my user account under VBox does NOT belong > to > the dialout group, so I would have not permission to use it without making > changes... > > crw-rw 1 root dialout 188, 0 Jul 2 13:31 /dev/ttyUSB0 > wulfraed@debian:~$ groups > wulfraed cdrom floppy sudo audio dip video plugdev netdev bluetooth lpadmin > scanner vboxsf > wulfraed@debian:~$ sudo usermod -a -G dialout wulfraed > [sudo] password for wulfraed: > > > > wulfraed@debian:~$ groups > wulfraed dialout cdrom floppy sudo audio dip video plugdev netdev bluetooth > lpadmin scanner vboxsf > wulfraed@debian:~$ > > > > -- > Dennis L Bieber > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/rqhudg5e0ekfsmaetfe966socu9l1telkn%404ax.com > . > -- V.K.CHIKKADI -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CA%2BqvWERAzY0nQCrV1Ji5bYGJ64T5CB3xiCR5_VvyEfOXxUDzZA%40mail.gmail.com.
Re: [beagleboard] Re: Debug serial console not working
Hi Mark, Good day to you Saw this article it would help me to procure one. Thanks for your inputs. Regards, Vinay On Sat, 3 Jul 2021 at 5:05 AM, 'Mark Lazarewicz' via BeagleBoard < beagleboard@googlegroups.com> wrote: > Using Serial Debug Port on BeagleBone Black - KiranPalla.com > <https://kiranpalla.com/blog/using-serial-debug-port-on-beaglebone-black/> > Using Serial Debug Port on BeagleBone Black - KiranPalla.com > > It is interesting to see boot messages while the OS is coming up on > BeagleBone Black. The messages are useful … > <https://kiranpalla.com/blog/using-serial-debug-port-on-beaglebone-black/> > > > > Sent from Yahoo Mail on Android > <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature> > > On Fri, Jul 2, 2021 at 12:44 PM, Dennis Lee Bieber > wrote: > On Fri, 2 Jul 2021 15:44:12 +0530, in gmane.comp.hardware.beagleboard.user > Vinayakumar Chikkadi > wrote: > > > >I am using the prolific usb to serial connector. After I connect the usb > > WHICH "prolific usb to serial"? They have a whole slew of different > models. And that doesn't count the packagers using a Prolific chip in their > products (cf: > https://www.amazon.com/prolific-usb-serial/s?k=prolific+usb+to+serial ) > I'm guessing something similar to > > https://www.amazon.com/Serial-Adapter-Signal-Prolific-Windows/dp/B07R8BQYW1/ref=sr_1_8?dchild=1&keywords=prolific+usb+to+serial&qid=1625245702&sr=8-8 > > I can't really help with Prolific -- most of my USB<>serial devices are > FTDI chips. I think the Adafruit 4-pin cable is the only Prolific chip > device I have. > > >cable & When I check on Ubuntu with dmesg | tail > >I could see it’s getting enumerated as ttyUSB0 > >When I open with putty on the path > >/dev/ttyUSB0 with 115200 8N1 > >I am not able to open the com port using putty. > > Do you have privileges for the device? May not be relevant, but > connecting a USB<>Serial to the USB side of my BBB (I don't have a native > Linux desktop computer, and Windows won't be helpful to you) shows up like > > crw-rw 1 root dialout 188, 0 Jul 2 13:21 /dev/ttyUSB0 > > the default user for the machine does belong to the dialout group. > > I got the same thing for Debian running inside VirtualBox /after/ > manually selecting the USB device from the VB0x menu... > > BUT... unlike the BBB, my user account under VBox does NOT belong to > the dialout group, so I would have not permission to use it without making > changes... > > crw-rw 1 root dialout 188, 0 Jul 2 13:31 /dev/ttyUSB0 > wulfraed@debian:~$ groups > wulfraed cdrom floppy sudo audio dip video plugdev netdev bluetooth lpadmin > scanner vboxsf > wulfraed@debian:~$ sudo usermod -a -G dialout wulfraed > [sudo] password for wulfraed: > > > > wulfraed@debian:~$ groups > wulfraed dialout cdrom floppy sudo audio dip video plugdev netdev bluetooth > lpadmin scanner vboxsf > wulfraed@debian:~$ > > > > -- > Dennis L Bieber > > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/rqhudg5e0ekfsmaetfe966socu9l1telkn%404ax.com > . > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/1430302616.2000350.162526373%40mail.yahoo.com > <https://groups.google.com/d/msgid/beagleboard/1430302616.2000350.162526373%40mail.yahoo.com?utm_medium=email&utm_source=footer> > . > -- V.K.CHIKKADI -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CA%2BqvWETA5eg1sbWQCHVDPpyxSgwVzu22yhOJzRiLiBwW7jSbGQ%40mail.gmail.com.
[beagleboard] Fwd: Regarding error applying patch to kernel 3.12.9
Hi, I was trying to get the linux kernel ready for the BBB. Download the 3.12.9 kernel and apply the patch existing in the sysplay repo(bbb-master/Images/ELPImages/epid_dts.patch). I tried this patch but getting errors(could not apply the patch and asking what files to be patched), i am not getting exactly which patch do i need to apply and for what files into the 3.12.9 kernel this patch is required. Best Regards, Vinay Chikkadi -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CA%2BqvWESRzFE6EA40%2BBCkPWQQLyUyrsfETgrW%2BJ_HC1gD2-BHcQ%40mail.gmail.com.
Re: [beagleboard] Fwd: Regarding error applying patch to kernel 3.12.9
Hi Robert, sorry for not mentioning the URL. Basically was trying to prepare the 3.12.9 kernel for BBB. i am actually following some author here. As i had few driver codes for 3.12.9 kernel, which i wanted to experiment for understanding driver frameworks. Regards, Vinay On Tue, Mar 31, 2020 at 9:13 PM Robert Nelson wrote: > On Tue, Mar 31, 2020 at 9:41 AM Vinayakumar Chikkadi > wrote: > > > > Hi, > > > > I was trying to get the linux kernel ready for the BBB. > > > > Download the 3.12.9 kernel and apply the patch existing in the sysplay > repo(bbb-master/Images/ELPImages/epid_dts.patch). I tried this patch but > getting errors(could not apply the patch and asking what files to be > patched), i am not getting exactly which patch do i need to apply and for > what files into the 3.12.9 kernel this patch is required. > > It took a little bit to find this repo: > > https://github.com/sysplay/bbb > > You might want to contact the author.. > > Why 3.12.x? are you following some book/text? > > Regards, > > -- > Robert Nelson > https://rcn-ee.com/ > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/CAOCHtYjc%2BT_dsBjdG4N7BkE6TLJ88v2TsV%2Bc-7zK%3Dk%3DLQSdgPQ%40mail.gmail.com > . > -- V.K.CHIKKADI -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CA%2BqvWESHd2TAKR%2BbOPkMgqJHM8b8P-5qaAETwb9YWz18exk_pw%40mail.gmail.com.
Re: [beagleboard] Fwd: Regarding error applying patch to kernel 3.12.9
Thanks Robert. Hope this should help. On Tue, 31 Mar, 2020, 21:43 Robert Nelson, wrote: > On Tue, Mar 31, 2020 at 11:01 AM Vinayakumar Chikkadi > wrote: > > > > Hi Robert, > > > > sorry for not mentioning the URL. > > Basically was trying to prepare the 3.12.9 kernel for BBB. > > i am actually following some author here. > > As i had few driver codes for 3.12.9 kernel, which i wanted to > experiment for understanding driver frameworks. > > Seems to apply cleanly: > > voodoo@hestia:~/linux-src$ git checkout v3.12.9 -b tmp > Updating files: 100% (79755/79755), done. > Switched to a new branch 'tmp' > voodoo@hestia:~/linux-src$ wget > > https://raw.githubusercontent.com/sysplay/bbb/master/Kernel/patches/epid.patch > --2020-03-31 > <https://raw.githubusercontent.com/sysplay/bbb/master/Kernel/patches/epid.patch--2020-03-31> > 11:12:07-- > > https://raw.githubusercontent.com/sysplay/bbb/master/Kernel/patches/epid.patch > Resolving raw.githubusercontent.com (raw.githubusercontent.com)... > 151.101.192.133, 151.101.128.133, 151.101.64.133, ... > Connecting to raw.githubusercontent.com > (raw.githubusercontent.com)|151.101.192.133|:443... connected. > HTTP request sent, awaiting response... 200 OK > Length: 2964 (2.9K) [text/plain] > Saving to: ‘epid.patch’ > > epid.patch > 100%[=>] > 2.89K --.-KB/sin 0s > > 2020-03-31 11:12:07 (6.60 MB/s) - ‘epid.patch’ saved [2964/2964] > > voodoo@hestia:~/linux-src$ patch -p1 < epid.patch > patching file arch/arm/mach-omap2/Kconfig > patching file arch/arm/mach-omap2/omap_hwmod_33xx_data.c > voodoo@hestia:~/linux-src$ > > Regards, > > -- > Robert Nelson > https://rcn-ee.com/ > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/CAOCHtYg0UG%2BAoB6rHExYu5%3DjBp15CRf5F-U0LeUTgPNjQ7D68w%40mail.gmail.com > . > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CA%2BqvWERbSLuErg3s-_C2hVdwe-p%2Bnrc%2BwnY1bzXBG2yfxyQFvg%40mail.gmail.com.
